New! SH-1oh1 µTune edition

The SH-1oh1 µTune is a special edition of the Tubbutec SH-1oh1. It has all the features of the SH-1oh1 but also:

  • Microtuning with high resolution
  • Upload up to 31 custom scales via midi sysex. For example using Scala.
  • Switch scales live
  • Includes a scale editor! For each key you can set base note, coarse and fine pitch via midi CC. Save your custom scale when satisfied.
  • Export scales via midi-sysex, or send them to other synths
  • Custom tuning available on CV-out (5 octaves only)

More info

SH-1oh1: Roland SH-101 midi retrofit and feature extension
SH-1oh1 µTune edition: Micro tonal version of SH-1oh1
Polysix, Poly61 and Mono/Poly midi retrofit and feature extension (aka Modysix)
Analoge modification kit for Korg Polysix
frontpage-juno66-300Midi retrofit and feature upgrade for Roland Juno-6 and Juno-60
unip300 UniPulse: Universal drum machine midi interface

Recent Posts

ModyPoly for Poly-61M

This is a quick manual how to install the ModyPoly in an Korg Poly-61M. The existing midi sockets are used, so no new holes have to be drilled. Incomming midi messages are passed to both the original midi implementation and the ModyPoly. Outgoing midi messages will be from ModyPoly only.

  1.  Install the ModyPoly as shown in the installation manual. Do not drill any holes for the midi sockets.
  2. Cut off the ModyPoly midi sockets.
  3. From the existing midi sockets, remove the red wire and solder the purple wire from ModyPoly in its place as shown in image 1 below. This takes care of the midi output.
  4. For the midi input you need the following additional parts: A NPN Transistor such as BC547C, a 100k resistor and a 10k resistor. These parts need to be soldered to the PC-900 optocoupler found on the Poly-61 midi board as shown in schematic figure 2 and picture 3. Solder the black and white wires from ModyPoly to the points shown in the schematic.

You can now use your ModyPoly. There is only one detail you need to be aware of:

ModyPoly uses Program Change midi messages to switch Play modes, the Poly-61M uses them (correctly) to switch programs. So make sure you have the Poly-61M midi receive channel set to a different number then the ModyPoly midi receive channel.

Image 1, midi socket connection

Image 3

Schematic 2


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